If your destination is east of Village Center Drive (shown in blue), use Yorba Linda Boulevard/Weir Canyon Road from the Riverside Freeway to get to and from your destination. If your destination is west of Village Center, use Imperial Highway to the greatest extent possible to get to and from your destination.
Mouth ulcers are caused by many disorders. These include: 1  Canker sores. 2  Gingivostomatitis. 3  Herpes simplex (fever blister). 4  Leukoplakia. 5  Oral cancer. 6  Oral lichen planus.
7 Possible Causes of Mouth and Tongue Ulcers. So what causes tongue ulcers? Besides canker sores, there are a number of different possible triggers that can make a mouth ulcer appear. Oral thrush: This is a condition caused by an overgrowth of the fungus Candida albicans within the mouth.